Home / 81,016.16-121,523.28-34,237.28

Finding the Fourth Proportional to 81,016.16, 121,523.28 and 34,237.28

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Solution

The fourth proportional to 81,016.16, 121,523.28 and 34,237.28 is: 51,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,016.16 : 121,523.28 = 34,237.28 : x
  2. Step 2: Convert to fraction form
    81,016.16/121,523.28 = 34,237.28/x
  3. Step 3: Cross multiply
    81,016.16x = 121,523.28 × 34,237.28
  4. Step 4: Simplify right side
    81,016.16x = 4,160,626,563.88
  5. Step 5: Solve for x
    x = 4,160,626,563.88/81,016.16
  6. Step 6: Final answer
    x = 51,355.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.